The National Scientific Inc. polypropylene screw thread cap silicone septum available in pack of 100 includes a septum that is bonded to the cap to reduce septum push-through and ensure smooth application.

Minimize contamination from handling with the National Scientific Inc. polypropylene screw thread cap silicone septum. It has a pre-assembled cap and septa that are highly chemical resistant and can be used with a variety of solutions used in laboratories. The black polypropylene caps offer seamless performance even at high temperature and when exposed to corrosives. The PTFE/Silicone septum bonded to the caps are highly re-sealable and can be used even after multiple punctures. The caps have a thread size of 13-425mm and can be used with all standard 4ml top vials. Each National Scientific Inc. polypropylene screw thread cap silicone septum available in pack of 100 pack contains a total of 100 caps with septum.

Product Type: Screw Cap

Closure Size: 13-425mm

Made of black polypropylene

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